Actually, periodic magnetic polarity reversals in Earth's history are extremely well established. If you're trying to say that "anyone" could "debunk" that notion, you're very mistaken.
However, it's less well known what happens *during* a reversal, so predictions about the Earth "roasting" are indeed mere speculation.
For some introduction to geomagnetic polarity reversals, see:
Oilfield Glossary: Geomagnetic polarity reversal
Oilfield Glossary: Geomagnetic polarity time scale
WHEN NORTH GOES SOUTH: Three-Dimensional Simulation of Geomagnetic Field Reversal
Geology 101 Physical Geology Fall 2002
Magnetic Reversals and Moving Continents
And anyone with a complex understanding would know they're wrong...
This is probably developed by the same idiots who advertise the "free" energy machines using the earth's magnetic fields in the popular science mags.
Pls elaborate....